...Spike Witwicky. Who must be in his forties now, so he's a bit like one of those embarrassing dads who mow the lawn with no shirt on. Also, Rack'n'Ruin and Roadbuster are back... at least until Spike gets to them, it seems. Also Whirl, Springer and... Chromedome? Who's that in the bottom left?

But those Wreckers died during a time-altering storm, so a comeback from them is easily explained by time resetting and timelines splitting. Which is what I assumed happened after the final group of Autobots jumped back to the future in #205.

...Spike Witwicky. Who must be in his forties now, so he's a bit like one of those embarrassing dads who mow the lawn with no shirt on. Also, Rack'n'Ruin and Roadbuster are back... at least until Spike gets to them, it seems. Also Whirl, Springer and... Chromedome? Who's that in the bottom left?